Cant go wrong with thugcleave aka Rogue/Hunter/Disc. Completely counters alot of comps and is in general pretty easy to play.

If not, then stick a rogue with another op class, namely spriest or mage, throw an rsham or rdruid in there and your golden. Pretty much the way of things right now in pvp, throw 2 op classes together and stick an rsham on it and its viable.

thugcleaves dmg and instant cc is just so high, when either target is tunnelled they can still put out close to there max damage unlike if the shadow or mage gets trained in the later comps where you'll rely on cc chains to get off burst windows. thugcleaves gonna be easier...

This, although i'd say RPD instead of RPS. I'd argue that Thugcleave is as good as RMP if not better, but the 4 main ones are Thug, RMP, RLS and RPD.

edit: and thug could be played with a disc priest. It has a much better opener than rogue/hunter/pala because of the fear bomb on dps and MD against palas

Agreed mostly Thugcleave is easier to play - it's absurdly lethal for the first couple minutes, and even after they burn through their cooldowns they are still bursty enough to score a kill at any moment. Thugcleave has counters though, there are some comps - like Shatterplay - that at least soft counters to Thug. RMP has no counter comps, it's good against everything - but you need to know how to play against every different comp; RMP has higher potential and no counters. That said, if I were going to play my Rogue this season, I'd rather play Thug I think

Agreed on RPD vs. RPS, RPD is clearly the stronger variant now that I think about it.